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    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <!-- 只有两个键的键盘 -->
    <script>
      var minSteps = function (n) {
        if (n == 1) return 0
        var sum = 0
        for (var i = 2; i <= n; i++) {
          while (n % i == 0) {
            sum += i
            n = n / i
          }
        }
        return sum
      }
      console.log(minSteps(3))
    </script>
  </body>
</html>
